EBSD技术及其在钛合金织构分析中的研究进展  

Research Progress of EBSD Technology and Its Research in Texture Analysis of Titanium Alloys

作　　者：苏连朋 刘汉源[2] 王文先[1] 于振涛[2] 周廉[2] SU Lianpeng;LIU Hanyuan;WANG Wenxian;YU Zhentao;ZHOU Lian(Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,China;Northwest Institute for Nonferrous Metal Research,Shaanxi Key Laboratory of Biomedical Metal Materials,Xi'an 710016,China)

机构地区：[1]太原理工大学新材料界面科学与工程省部共建教育部重点实验室,山西太原030024 [2]西北有色金属研究院陕西省医用金属材料重点实验室,陕西西安710016

出　　处：《热加工工艺》2019年第22期1-6,共6页Hot Working Technology

基　　金：陕西省重点研发计划项目(2017ZDXM-SF-039);国家自然科学基金项目(31400821);国家重点研发专项项目(2016YFC110-2003)

摘　　要：电子背散射衍射(EBSD)技术是分析多晶体显微结构及组织的先进方法,其织构分析兼具XRD和TEM的优点,近年来受到了广泛的关注。钛合金具有比强度高、密度小、耐腐蚀性好等突出优点,被广泛应用于航空航天、生物医用等领域。钛合金在变形时往往产生相变和形变织构,影响各项性能,且由于钛合金存在多晶型转变,织构情况也更加复杂。概述了EBSD的工作原理和衍射花样信息,介绍了EBSD检测试样的制备,总结了该技术在不同类型钛合金织构研究中的应用和研究进展。Electron backscatter diffraction(EBSD) is an advanced method for analyzing the microstructure of polycrystals. Its texture analysis has the advantages of both XRD and TEM, which has attracted wide attention in recent years.Ti alloys have the excellent characteristics of high specific strength, low density and corrosion resistance, which are widely used in aerospace, biomedicine, etc. The phase transformation and deformation texture often occur during deformation and heat treatment, which affects the performance of titanium alloys. And for the polycrystalline transformation, the texture of the alloy is more complex. The operational principle and diffraction pattern information of EBSD were outlined. The preparation of EBSD testing sample was introduced. The application and research progress of the technology used in different types of titanium alloy texture were summarized.

关 键 词：电子背散射衍射(EBSD) 钛合金 相变 变形织构 

分 类 号：TG115.2[金属学及工艺—物理冶金]